cmd/connect.pl

   1 #
   2 # connect a cluster station
   3 #
   4 my $self = shift;
   5 my $call = uc shift;
   6 my $lccall = lc $call;
   7
   8 return (1, $self->msg('e5')) if $self->priv < 5;
   9 return (1, $self->msg('e6')) unless $call gt ' ';
  10 return (1, $self->msg('already', $call)) if DXChannel->get($call);
  11 return (1, $self->msg('outconn', $call)) if grep {$_->{call} eq $call} @main::outstanding_connects;
  12 return (1, $self->msg('conscript', $lccall)) unless -e "$main::root/connect/$lccall";
  13
  14 my $prog = "$main::root/local/client.pl";
  15 $prog = "$main::root/perl/client.pl" if ! -e $prog;
  16
  17 my $pid = fork();
  18 if (defined $pid) {
  19         if (!$pid) {
  20                 # in child, unset warnings, disable debugging and general clean up from us
  21                 $^W = 0;
  22                 $SIG{HUP} = 'IGNORE';
  23                 eval "{ package DB; sub DB {} }";
  24                 alarm(0);
  25                 DXChannel::closeall();
  26                 Msg::close_server();
  27                 $SIG{CHLD} = $SIG{TERM} = $SIG{INT} = $SIG{__WARN__} = 'DEFAULT';
  28                 exec $prog, $call, 'connect';
  29         } else {
  30                 sleep(1);    # do a coordination
  31                 push @main::outstanding_connects, {call => $call, pid => $pid};
  32                 return(1, $self->msg('constart', $call));
  33         }
  34 }
  35 return (0, $self->msg('confail', $call, $!))
  36
  37
  38